x^2+xy分之x-y 除以x^2y^2-x^4分之xy-x^2*x-y分之1
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x^2+xy分之x-y 除以x^2y^2-x^4分之xy-x^2*x-y分之1
x^2+xy分之x-y 除以x^2y^2-x^4分之xy-x^2*x-y分之1
x^2+xy分之x-y 除以x^2y^2-x^4分之xy-x^2*x-y分之1
题目是否如下所示:
(x^2+xy)分之(x-y) 除以(x^2y^2-x^4)分之(xy-x^2)*(x-y)分之1
=[x(x+y)分之(x-y) 乘以 [x(y-x)]分之x²(y²-x²) 乘以 (x-y)分之1
= - (x+y)分之(y²-x²) 乘以(x-y)分之1
= - (x+y)分之(y+x)(y-x) 乘以 (x-y)分之1
=1
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